Suction cleaning-machine.



O. A. ROHRER.

SUCTION CLEANING MACHINE;

APPLICATION FILED APR. 22, 1912.

1,053,649, Patented Feb. 18, 1913.

- 2 SHEETS-SHEET 1.

.90 /0 5 .9 4/ jgxk' H/ u H g -r ff ,'j 4; 48 5 1 j 4 2a 4/ "u H L1 59 IR i/ f J '6 Witnesses Inventor Attorneys 0. A. ROHRER.

SUCTION CLEANING MACHINE. APPLICATION TILED APR. 22, 1912.

1,053,649, Patented Feb. 18, 1913.

2 SHEETS-SHEET 2.

I Attorneys changes in the precise embodiment of the inthe scope of what is claimed without OSCAR A. ROHRER, 0F WAVERLY, ILLINOIS, ASSIGNOR OF ONE-HALF T0 JOHN H.

SHUTT, 0F WAVERLY, ILLINOIS.

SUCTION CLEANING-MACi-IINE.

Application filed April 22. 1912.

Specification of Letters Patent.

PatentedFcb.18, 1913.

Serial No. 692.427.

To all whom it may concern Be it known that I, OSCAR A. Ronnnn, a I citizen of the United States, residing at WVaverly, in the county of Morgan and State of Illinois, have invented a new and useful Suction Cleaning-Machine, of'which the following is a specification.

This invention relates to improvements in suction cleaning machines, the primary ob ject of the same being the provision of a portable machine adapted to be propelled over the surface cleaned and provided with a suction nozzle having a yielding tension upon the surface, *such tension being increased or diminished, due to the elevating or lowering of the hand gripping portion of the handle.

WVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combi' nation and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that vention herein disclosed can be made within de' parting from the spirit of the invention.

In the drawings Figure 1 is a top plan view of the complete machine with only a portion of the operating handle shown. Fig. 2 is a side elevation of the col'nplcte machine with one of the drive wheels removed. Fig. 8 is a section taken on line 3-3 of Fig. 2, through the dust receptacle and suction creating device. Fig. 4 is an enlarged detail view of the eccentric and means for aetuating the pistons of the suction creating device. Fig. 5 is an enlarged detail view of the supporting frame with the nozzle attached thereto. Fig. 6 is an enlarged detail sectional view through the eccentric and straps illustrating the anti-frictional hearings interposed therebetween.

Referring to the drawings, the numeral 1 designates the two longitudinal strips of the frame of the suction cleaning machine, which is properly spaced at their forward ends by means of the yoke plates 2 and 18, while the rear end is held by means of the two angle plates 3, which provide a means for the connection of the operating handle 4; thereto.

J ournaled in the strips 1 near the forward end thereof, are the two stub shafts which carry the drive wheels 6, which are the only supporting Wheels for the suction cleaning device, alidcarricd by each one of the respective drive wheels is a large internal gear 7, by meansof which the suction creating device, as will presently appear. is operated by the rotation of the drive wheels as the machine is pushed bark and forth over the sm'face being cleaned.

Two brackets S, are connected to the under side of the plates 1 tothe rear of the stub shafts and have journaled therein a single transverselydisposed shaft 9, upon whdsc outer ends are keyed the small pinions 10, which are in mesh at all times with the teeth of the internal gears T of the drive wheels 6. By this means it will be seen that the rotation of the respective drive wheels will operate the shaft 9.

Keyed upon the shaft 9 intermediate of its ends. is an eccentric 11 which has dis posed thereabout the two part strap 1.2. the antifrict-ional bearings 13. being interposed between the periphery of the eccentric 1,1.

and the strap 12 to reduce the friction at such point during the rotation of the eccentrio and the consequent oscillation of the strap. The strap 19. is provided with the two lugs l-l between which is pivoted the rear end of the connecting rod whose forward end is connected to the crank 16 of the shaft 17. The shaft 17, as clearly shown in Fig. 4. is journaled between the plates 2 and 1S. Keyed upon the shaft 17. near the upper end thereof, and within'thc plate 2 is the cross-head 19. It will thus be seen that the rotation of the shaft 9 imparting motion to the eccentric 11. will produce in the shaft 17 an oscillating movement so that the cross-head 19 will be oscillated similarly to a walking beam.

metal casing 21 for properly supporting the suction creating devices 38 and the dust and dirt receptacle 23 is provided. the same being composed of an elongated sheet metal member adapted to he slid over the lower end of the respective suction creating devices and is properly supported between the two longitudinal strips 1 of the frame. The slot 22 is provided in the casing 21, the purpose of which will presently appear.

As clearly shown in Fig. 3, the dust and dirt collecting cylinder 23, is provided with the. removable cap or closure 24 at the rear end thereof, the nozzle attaching tube 25 being connected to the chamber 23 near the rear end thereof and pt its upper side so as to fit within the recess or slot 22 of the up- I within the chamber of its respective cylinper portion 21 of the casing. Leading from the tube 25 is a flexible conduit or hose pipe 26,;whose normal tendency is to hold the floor engaging tool or nozzle 27 carried in theL -,J ,,outer free end thereof, downwardly uponthe surface traversed. The nozzle 27 is 'connected'tolthe outer ends of the arms 28, whose inner ends are pivotally connected as at 29 to the inner ends of the stub shafts 5, so that by reason of the tension or resiliency of the flexible conduit 26 (dotted lines Fig. 2), the nozzle 27 will he held downwardly regardless of the positioning of the frame and handle 4, so that persons of various heights may efficiently operate the machine during theback and forth movement thereof over the surface being cleaned. It is also evident, that a slight upward movement of the handle 4 will impart a greater pressure so that the nozzle 27 may be held more closely upon the surface being cleaned The cylinder 23 has mounted therein a ring 30, which slidably fits tightly against the inner walls of the chamber 23 and connected thereto is a spring handle 31, whereby the said ring 30 with the air filtering and 32 niav be placed within,

dust receiving'bag the open end of the or withdrawn through,

. chamber 23 sealed by the cap or closure 24.

, dicated by the arrows Thebag 32 may be composed of any desired screening fabric the end adjacent the cover 24 so that the dust and dirt enterin through the nozzle and nozzle tube 26 will be conducted as inin Fig. 3, into the bag 32 whence the filtered-air passes through the port 33 of the chamber 23. Thus the bag 32 will act both as an air filtering means and a dust and dirt receptacle.

Disposed in opposite positions longitudinally ofthe intermediate portion of the 'cyl in der 23, are the two air conducting channels 34 in whose walls 35 at the rear ends thereof, are provided the valve controlled ports 36, the valves in said ports being disposed to open outwardly to permit the passage of the air through said ports and the bypasses 37 and intothe respective rear ends of the cylinders of the suction creating devices 38. The two suction creating de- 'vices are disposed oppositely upon eachvside of the dust and dirt receptacle and are each provided with the valve outlet ports 39, so

that air can escape upon the exhaust stroke of the plunger 20. A plunger 40 is mounted for reciprocation in each one of the cylinders and these plungers are operably confiected to the respective terminals of the double lever 19 through the connecting rods 41, these being so disposed that one is in the act of drawing the air through the suction nozzle while the other is expelling the air and may be held by any form of frame as desired, it being open at ,der through the exhaust port By this means'it will be seen that a contlnuous flow of air is drawn through the nozzle 27 and into the chamber 23 to be finally expelled through the respective yalve controlled exhaust ports 39 of the suction-creating devices 38.

What is' claimed is:

1. A portable suction cleaning machine,

yielding tension tohold the nozzle toward the surface traversedi 1 2. A portable suction cleaning machine, having a frame mounted upon Wheels, a handle connected to the rear end of the frame, a suction creating device mounted upon the frame, a pair of arms having their inner ends pivotally connected to the frame, a transversely disposed nozzle connectingthe free ends thereof for movement in uniconn'ected to the nozzle and the other end to the suction creating device, said conduit exerting a tension to hold the free ends of the arms downwardly'and the nozzle toward the surface traverse 3 A portable suction cleaning machine, having a frame mounted on wheels, a handle connected to the rear end of the frame, a suction creating device carried by the frame and operated from the wheels, a pair of arms having their inner ends pivotally connected to the frame intermediate of the ends of the frame, a transversely disposed nozzle connecting the free ends of the arms together, and a resilient conduit'having one end connected to the nozzle and the other end to the suction creating device, said conduit exerting a tension to hold the nozzle toward the surface traversed, the pressure of the nozzle upon the floor being increased by the elevation of the handle and the con sequent bending of the conduit.

4. A suction cleaning machine, having a pair of drive wheels, an open frame pivoted intermediate its ends to the axles of the wheels, a handle rigidly connected to one end of the frame, a suction creating device carried by the frame and operably connected to thewheels, two arms having their upper [ends pivoted to the axles with their free ends extending toward and beyond the other end of the frame, a nozzle connecting the free en ds of the arms together, and an elastic conduit having one end connected to the sucso'n, and a resilient conduit having one end tion creating device and the other end conmy own, I have hereto atfixed my signature neetetl to the nozzle, said conduit formlng a 111 the presence of two witnesses.

resilient connection between the nozzle and v I q 1 .x A. hOHhl'R- the frame, whereby the elevatlon ot the han- J 5 dle re ulates the pressure of the nozzle upon \Vitnesses:

the surface traversed. A. \V REAGEL,

In testimony that I chum the foregoing as M, A. DENNIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

